Cedar Hill

Nicholas Kamm, Getty Images

36. Step inside the "Growlery" at Cedar Hill, Frederick Douglass' sprawling home in Anacostia. It was the outer building where the African-American statesman retreated to work, write and think. (1411 W. St., SE, 202-426-5961, nps.gov).

36. Step inside the "Growlery" at Cedar Hill, Frederick Douglass' sprawling home in Anacostia. It was the outer building where the African-American statesman retreated to work, write and think. (1411 W. St., SE, 202-426-5961, nps.gov).